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F +92 51 6000 100 E [email protected]

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SMEC-SIORl-SECEC SSS Joint Venture 720MW Karot Hydropower Project Main Camp,'Ko,tli Road, KAROT Tehsil Kahuta, District Rawalpindi Punjab - Pakistan

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+92 51 6000 107

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- KPCL QA/QC Audit Report No. 12

Copy to: Attachments:

- " . ·' lffi~~ AllanG~ Chief Resident Engineer Sl\'.IEC International (Lead Member of SSS JV)

Yours sincerely,

A report has been attached which shows observations and general comments of the EniploydJ''s Engineer Audit team. ·

This is the 121h Quarterly QA/QC Audit which has been conducted on July 13, 2021 of EPC Contractor's laboratories, batching plants and QA/QC department at Karat Hydro power Project Site.

QA/QC AUDIT REPORT NO. 12 APRIL TO JUNE 2021 . Dear Mr. Hou,

~r:_ Hou Jiangang General MClnager Karot Management Department/TGDC Main Camp, Project Site, Ka rot, Tehsil Kahuta Rawalpindi- Pakistan

Date: 151~July 2021 -· ~~I 'I. -.. ...

SMEC-SIDRl-SECEC e--~ SMEC . ® SECEC - ~

Member of the Surbana jurong Group

Our Ref: SSS/5065056/NTM/1.88/7549

KAROT POWER COMPANY (Pvt.) LIMITED

720MW KAROT HYDROPOWER PROJECT

QA/QC Audit Report No. 12

April to June 2021

(Audit Completed in July 2021)

SSS - JV / Employer’s Engineer

House #16-B, Kaghan Road, F-8/4, Islamabad – Pakistan Tel: +92-51-2855143, Fax: +92-51-2261174 Email: [email protected]

mailto:[email protected]

DOCUMENTS / REPORT CONTROL FORM

Project Name: 720MW Karot Hydropower Project

Report Name: QA/QC Audit Report No. 12: April to June 2021

Project Number: 5065056

Report for: Karot Power Company (Pvt) Limited (KPCL)

PREPARATION, REVIEW AND AUTHORIZATION:

Revision No.

Date Prepared by Reviewed by Approved for

Issue by

00 July 13, 2021 He Changchun, Zubair Jan Allan G. Christer Allan G. Christer

Employer’s Engineer Services for 720MW Karot Hydropower Project QA/QC Audit Report | July 2021

TOC-I

Table of Contents

1. INTRODUCTION 2

1.1 General ...................................................................................................................................... 2

1.2 Project Information .................................................................................................................. 2

1.3 Contract Data ............................................................................................................................ 3

1.4 Employer’s Engineer Services ................................................................................................ 3

1.5 QA / QC – Contractual Obligations of Employer Engineer ................................................... 4

1.6 QA / QC Reporting by the Employer Engineer ...................................................................... 5

1.6.1 QA/QC Audit ............................................................................................................. 6

1.6.2 General comments: ................................................................................................ 11

1.6.3 QA/QC Auditing by Employer Engineer .................................................................. 12

APPENDICES (E&M ISSUES) 20

APPENDIX A: THE LIST OF RFI’S RAISED DURING LOCKDOWN PERIOD 21

APPENDIX-B: THE LIST OF LOST RFI’S RELATED TO MECHANICAL WORKS 22

APPENDIX-C: THE LIST OF LETTERS RELATED TO MECHANICAL WORKS WHICH ARE NOT

RESPONDED BY THE CONTRACTOR 23

APPEDNIX-D: THE LIST OF SOME OTHER PENDING ISSUES 24


2

1. INTRODUCTION

1.1 General

Karot Power Company (Pvt.) Limited (hereinafter “KPCL”, or “Employer”), is currently in the process of designing,

developing, constructing, and will own and operate the 720MW Karot Hydropower Project (hereinafter referred to

as “KHPP” or the “Project”) located near Karot Bridge in the District of Rawalpindi in the Province of Punjab,

Pakistan using the water resources of the Jhelum River, under the Policy for Power Generation Projects Year

2002 (“the Policy”) issued by the Government of Pakistan.

1.2 Project Information

General: Karot Hydropower Station will be the 4th cascade hydropower station planned on the Jhelum River in

Pakistan. The 3rd cascade is Azad Pattan Hydropower Station. The dam is located 1km upstream of the Karot

Bridge on the boundary between Punjab Province and AJK, Pakistan on the left bank and Punjab Province on

the right bank. It is 74km from Mangla Power Station located on the downstream and roughly 55km away from

Islamabad in the west. The project can be approached via the Islamabad - Rawat – Pandori – Kotli Road

(approximately 80km). The travel time from Islamabad is about 2 hours. See location plan below:

The project is designed exclusively for power generation under a Build Own Operate Transfer (BOOT) basis with

a concession period of 30 years. It is designed with an asphaltic concrete core rock-fill Dam of 95.5 m height, a

separate Spillway, an Intake structure, 3 Diversion Tunnels, 4 Power Tunnels and a surface Powerhouse

containing 4 x 180 MW Francis turbines with a mean annual power generation capacity of 3,206 million kW/h.

Construction Time Line: The EPC Contract construction period is 5 years plus a Defects Notification Period of

2 years for Civil Works and 3 years for E & M Works. Trial run and commercial operation is planned at the end of

the 5th year.


3

EPC Contractors: The Civil Works and E & M Works are two separate Contracts with the Civil Works Contractor

bearing the responsibility to coordinate and manage the E & M Contractor for timely delivery of the project.

Following are the EPC Contracts:

1. Engineering and Construction Contract: Three Gorges Economy Development Company (TGDC)

2. Equipment Supply Contract: China Machinery & Electric Company (CMEC)

Chinese design company CSPDR has been engaged by the Contractor for the detailed design of the project.

1.3 Contract Data

i. Signing of EPC Contracts February 2015

ii. Date of Project Financial Close February 22, 2017

iii. EPC Contract Commencement Date December 01, 2016

iv. EPC Contract Construction Period 60 months

v. EPC Contract Defects Notification Period 24 m (Civil), 36 m (E&M)

vi. Employer’s Engineer Services Contract signed May 26, 2016

vii. Employer’s Engineer Commencement Date May 31, 2016

viii. Employer’s Engineer Contract Period 96 m (60 + 36)

1.4 Employer’s Engineer Services

The services of Employer’s Engineer broadly cover the following:

a) Project Design Review

Level – I and Level – II Design Review;

Construction Drawings and Method Review;

Review of Project Plans and Schemes;

Review of Variations;

b) Project Supervision

Quality Assurance and Quality Control;

Progress Monitoring;

Health, Safety and Environmental Control (HSE);

Verification of Contractor’s Invoices;

Meeting, Reporting and Documentation;

c) Assistance and Coordination with relevant stakeholders

Assistance to KPCL to manage the EPC Contracts and for fulfilling their obligations under the

Security Agreements & Financial Documents;

Coordination with power purchaser and assist in selection of a ‘Reopener Verifier’, whose function is

to verify costs for variations in geology, civil work escalation and resettlement costs;

Coordination with other agencies: NEPRA, Environmental Protection Agency of AJK and Punjab and

other relevant public entities in Pakistan, Lender’s Engineer

Assist KPCL in claiming compensation in Insurance matters

Assist KPCL in preparing project progress reports as required by the stakeholders;


4

For a detailed description of Employer’s Engineer scope refer to the Section IV of the Consultancy Agreement,

Terms of Reference.

1.5 QA / QC – Contractual Obligations of Employer Engineer

The specific scope of services for Quality Assurance and Quality Control activities to be covered by the Employer

Engineer is as follows:

“The Employer’s Engineer will review and approve the Quality Assurance and Quality Control Plan (QA/QC

Plan), which includes the Quality Plan, Quality Assurance Procedures, and Quality Control Procedures

concerning the works of all disciplines; prepared and submitted by the EPC Contractors. The Plan will be in

accordance with ISO 9001:2008 series quality standards and in compliance with the requirements established in

the Project Requirement(s) of the EPC Contracts. The Employer’s Engineer will perform daily compliance

monitoring and will conduct quarterly internal audits to assure compliance with Project ESMS requirements.

Project supervision includes but is not limited to the following:

Quality Assurance and Quality Control

The Employer’s Engineer will, with the approval from KPCL, prepare a draft of the Employer’s Quality Assurance

Program under the framework of the EPC Contracts, which will be independent of the Contractor's QA/QC

programs and will contain all the quality inspection programs, detailed specifications, detailed working

procedures, acceptance standards and programs. The Employer’s Engineer will set up the detailed casual

inspection, off-site testing, additional physical testing and verification testing of the Contractor’s works in the

Employer’s Quality Assurance Program. The Employer’s Quality Assurance Program will also contain the

procedures, methods and specifications for the quality evaluation and assessment of the Contractor’s Work. The

Employer’s Engineer will assume full responsibility to strictly implement the Employer’s Quality Assurance

Program during the Construction Period and Defects Notification Period of the Project.

The Employer’s Engineer will appoint a QA/QC Manager with a team to implement quality standards in the

Project design, construction, manufacturing, installation, testing, commissioning and operation. His responsibility

will be to evaluate and verify the Contractor's QA/QC operations. Also, the Employer’s Engineer will witness the

following tests for acceptance during different phases/ stages of Construction and Manufacturing.

Tests during construction and installation;

Tests during manufacturing at manufacturer's premises within and outside Pakistan;

Tests on completion and Tests after completion; and

Any other testing required.

The Employer’s Engineer will monitor the implementation of QA/QC Plan by the EPC Contractors closely and

ensure that the EPC Contractors has established competent QA/QC units in its organization with sufficient

expertise and experience in accordance with the QA/QC Plan. The Employer’s Engineer will ensure that the

testing methods, testing procedures, testing equipment /apparatus, testing criteria, sampling inspection methods

and procedures, etc. set forth in the QA/QC Plan is following the Specifications in the Project Requirement of the

EPC Contracts and also meets the requirements of applicable Chinese Standards and mandatory

standards/requirements of Pakistan. The Employer’s Engineer will independently conduct casual inspections of

the construction materials to be incorporated into the Project from time to time and submit inspection reports to

KPCL. If the inspection results show that the quality of the construction materials cannot meet the specifications

and standards, the Employer’s Engineer will, upon approval from KPCL, issue instructions to the EPC

Contractors to rectify the deficiency.

The Employer’s Engineer will supervise and witness the Project Construction works carried out by the EPC

Contractors related to all Project Components and Facilities to ensure that the Project is completed satisfactorily


5

and in compliance with the approved drawings, specifications, methods statements, construction schedules and

Contract Documents. The Employer’s Engineer will also supervise the manufacture, factory tests and necessary

quality control tests of the E&M equipment and be responsible for the inspection of the E&M equipment

installation.

The Employer’s Engineer will maintain a necessary presence during execution of the various civil works,

construction, activities and erection / testing / commissioning of E&M works and ensure that the construction of

Project Facilities, Utilities and Components will be in compliance with the specifications and standards in the

EPC contracts. The Employer’s Engineer will review and monitor the records and information management

system established by the EPC Contractors in accordance with the EPC Contracts. The Employer’s Engineer will

also assume responsibility for KPCL’s own Management of Records and Information relating to the Project

during Construction Period and Defects Notification Period.

The Employer’s Engineer will organize the investigation, rectification and summarization of any general

engineering quality incident and will assist KPCL to investigate, rectify and summarize any such incident. The

Employer’s Engineer will assist KPCL to settle disputes arisen from such incidents.

1.6 QA / QC Reporting by the Employer Engineer

The Employer Engineer has been maintaining daily and monthly reporting of all the QA /QC related matters. All

monitoring reports are available on the PMIS System developed exclusively for this Project. The Employer

Engineer’s QA/QC Team participates in almost all QA/QC related meetings on site. Frequent joint visits with

KPCL and the EPC Contractor are part of this monitoring to resolve minor issues on the spot.


6

1.6.1 QA/QC Audit

Date: July 8 to 10, 2021

Location: Karot Project Site – All laboratories, Batching Plants and QA/QC Department

Project Name 720MW Karot Hydropower Project

Employer KPCL

Employer’s Engineer SSS-JV

EPC Contractor TGDC

Audit No: 12

Lead Auditor: DCRE / Resident Principal Engineer QA/QC

No. Agenda Audit Issues found Actions

recommended

Target

Dates

DAY1

1 EPC Contractor

Laboratory.

The following have been

audited.

1. Records of Construction

activities.

1. Laboratory have only

records in soft copies

and most of the records

were in Chinese

language.

1. Main Laboratory is

instructed to keep a

copy of all activities in

English or in both

languages.

As soon as

possible

2. Records of Tests taken at

site. 2. Available 2. No action required

3. Records of Suppliers. 3. Available 3. No action required

4. Records of Tests taken

from Suppliers. 4. Available 4. No action required

5. Records of In-coming

materials 5. Available 5. No action required


from In-coming materials 6. Available 6. No action required

7. Records of Rejected

Materials. 7. Available 7. No action required

8. Records of Equipment

Calibration.

8. Main laboratory is

keeping only their own

record.

8. They are instructed

to record all batching

plants and other site

laboratories


7


recommended

Target

Dates

2

Sections 1, and 3

(Batching plant

3) Laboratory.

The following were audited.

Note: Section 1 laboratory is working only for shotcrete and Section 2 have closed their laboratory and are using main laboratory. Reporting is made only for batching plant 3 laboratory.

1. Records of Construction

activities. 1. Available 1. No action required

2. Records of Tests taken at

site. 2. Available 2. No action required

3. Records of Suppliers. 3. Available 3. No action required


from Suppliers. 4. Available 4. No action required


materials 5. Available in Soft 5. No action required


from In-coming materials 6. Available 6. No action required

7. Records of Rejected

Materials. 7. Available 7. No action required

8. Records of Equipment

Calibration.

8. Laboratory equipment is

calibrated from an

unapproved third party

without being witnessed by

the EE,

8. Calibrate all

laboratory equipment

from an approved

third party in the

presence of the EE.

3 Batching Plants

1, 3.


Note: We are reporting

only batching plant 3,

batching plant no.1 is

closed.

1. Records of Calibration 1. Available. 1. No action required.


materials.

2. Available in their office

and not in site laboratory 2. No action required

3. Records of Concrete

requests.

3. Not available in proper

form.

3. Need to keep updated

record.

As soon as

possible

4. Records of Concrete

dispatched. 4. Not available as required.

4. EPC contractor is

required to print out

Records of Concrete

produced and where

As soon as

possible


8


recommended

Target

Dates

the material is being

dispatched. EE has

already raised 2 NCRs

on this issue.

5. Records of Plant

maintenance.

5. Section 3 staff are just

recording in the note book

only in Chinese

5. EPC Contractor is

instructed to keep

records of batching

Plants equipment

maintenance in

English or both

Languages.

As soon as

possible

DAY 2

1 Site

Implementation.

The sites were visited to

observe the

implementation of the

QA/QC procedure.

No Concrete dispatch slips

are printed out and sent to

site QA/QC staff at pouring

point.

Concrete pouring records

were found without mix

design numbers, dispatch

slip numbers, and was

available only with truck

numbers and concrete

grades.

It is a contract

requirement that TGDC

are to print out Records

of Concrete dispatched.

Site pouring records

should include all

required details like mix

design numbers,

dispatch slip numbers

etc.

EPC contractor needs

to conduct training of all

Sections lab personnel

to avoid any quality

issues.

As soon as

possible.

2

QA/QC

Documentation

and

Administration.


1. Records of the

Training of QA/QC

Staff.

Not Available

Need to conduct

trainings regularly and

keep record.

As soon as

possible.

2. Records of NCR’s

(Including Issued

dates, Person or

Department

responsible for

closing, Actions taken

and Status).

Available. No action required.

3. Review of the

Implementation of Available. No action required.


9


recommended

Target

Dates

Project Approved

plans.

4. Review of the

Implementation of

Corrective Actions.

Available. No action required.

3 Mechanical Work

1. Review of test results

record. Test results were available No action required.

2. Status of approved

material.

SSSJV staff inquired about

the approval, technical

specification and data sheet

of protective paint used on

the Rotor and Stator of Unit

1 and epoxy / Glue (DECJ

1209).

No evidence of desired

documents was

available.

As soon as

possible

3. List of rejected

material. Available No action required

4. Record of unapproved

or incomplete test. Available No action required

5. Record of all RFIs.

Inquired about the

mechanical works carried

out during lockdown.

Waiting for

management decision

about the work carried

out without EE’s

supervision.

As soon as

possible

4 Electrical work

1. Review of test results

record. Available. No action required.

2. Status of approve

material. Available Need action required

3. List of rejected

material.

No electrical material

rejected No action required

4. Record of unapproved

or incomplete test. No electrical item was found. No action required

5. Record of all RFIs

RFIs and CVI record was

not maintained in a proper

filing system.

Need to maintain RFIs

and CVI records.

As soon as

possible

Day 3 Section 5 Azad Patten

1

Section 5

Contractor

Laboratory.

The following have been audited

1. Records of Available No action required


10


recommended

Target

Dates

Construction activities.

2. Records of Tests taken at site.

Available No action required

3. Records of suppliers. Available No action required

4. Records of Tests Taken from Supplier.


5. Record of In-coming Materials.

Available in soft copy with

Procurement department,

not in Laboratory.

Need to keep record of

all in-coming materials As soon as

possible

6. Records of tests taken from In-coming Materials.

Available

Need to maintain a hard

copy record in the

laboratory

7. Records of Rejected Material.

Not Available Need to keep record of

rejected material.

As soon as

possible

8. Record of equipment calibration.


2

Section 5

Batching Plant

Azad Patten

1. Record of Calibration. Available No action required


Materials. Not Available

Need to keep record of

in-coming materials

As soon as

possible

3. Records of concrete

Request.

Available with incomplete

details

Need to improve

concrete request

format.

As soon as

possible

4. Record of concrete

dispatched. Available No action required.

5. Record of Plant of

maintenance. Available No action required

3 Site

Implementation

1. The site was visited in

order to observe the

implementation of

QA/QC procedure.

No concrete was in progress

at site. However, EE

instructed the contractor to

follow the approved / agreed

procedures for site work.

No action required

4

QA/QC

Documentation

and

Administration

1. Record of the training

QA/QC staff. Not Available

Need to conduct

trainings for QA/QC

team regularly.

Before next

audit

2. Records of NCRs

including issue dates. Available No action required

3. Review of the

implementation of

Project Approved

Not Available Quick action required As soon as

possible


11


recommended

Target

Dates

plans.

4. Review of the project

Implementation of

Corrective Action.

Not Available No action required

1.6.2 General comments:

1. Overall, EE observed that the EPC contractor needs to take action urgently to resolve the issues raised

in the Audit.

2. Most of the following observations are identical to previous audit reports. TGDC is instructed to strictly

implement required actions in all sections.

3. During audit, it was found that no technical staff was available from EPC contractor, EE highlighted this

serious issue by letter (SSS JV 7495 dated June 29.2021). EPC response is still awaiting.

4. During audit, it was recognized that many small issues can be closed with discussion but no one was

available from EPC QA/QC department. EPC contractor must take some urgent action in this regard.

5. Batching plant concrete records were not signed by EPC laboratory Personnel and they are not getting

sign from EE’s QA/QC team.

6. EPC Contractor should submit regularly all concrete records for signing and laboratory should keep one

copy of all signed records structure wise that will help them for the final report of all structures.

7. Section 5 is not conducting training on the site for workers. Urgent action needs to be taken.

8. Some NCRs regarding QA/QC are still open; EPC contractor needs to close all open NCRs on an

urgent basis.

9. For rejected materials, contractor should get signed witnessing from EE’s QA/QC team.

10. Improvement was observed in record keeping in proper manner at Section 1 QA/QC office and it is

expecting from all in future.

11. During signing any testing paper or QA/QC paper, TGDC must record their names in English for clear

identification.

12. The training record was not available with EPC contractor and they did not conduct any training in last

three months, however, Section 1 have that record only in Chinese language and only for Chinese

people.

13. Regular training should be conducted for all staff and record should be maintained in English or in both

languages.

14. EPC contractor should improve materials and testing record system in the asphalt plant laboratory.

15. If EPC contractor is making changes in their internal QA/QC management staff, inform EE and KPCL.

16. EPC Contractor’s Main laboratory staff should visit Azad Pattan site regularly to guide the team and to

keep control on all quality activities.


12

17. EPC contractor QA/QC has developed his own document system. Now we can find all hard copy

records in their control room. QA/QC needs to deploy a qualified person for keeping the records up to

date and maintaining the documentation.

18. Some of Project records are not fully in English or both in English and Chinese. EPC contractor must

ensure all records are in English or in both English and Chinese.

19. EPC contractor QA/QC Department needs to print out copies of concrete production slips for transit

mixers for pouring at site so that the site QA/QC staff can identify where the pour is located and record

the details of all batch concrete to avoid any pouring mistakes. EE has already raised 2 NCRs on this

issue.

20. EE observed a serious communication gap between TGDC and all Sections.

21. TGDC needs to strengthen their field laboratory and QA/QC team to control issues.

22. EPC contractor needs to deploy senior staff to check all QA/QC arrangements of Sections 1, 2, 3 and 5

as per audit requirements.

23. Section 3 and Section 5 filing systems were not to required standards, needed to improve before next

audit.

24. EPC contractor needs to develop their internal QA/QC audit system for all Sections to improve quality of

work.

25. Section 5 needs to get assistance from TGDC for understanding of QA/QC audit requirements.

26. Electrical and Mechanical departments need to improve their QA/QC team and record keeping system.

27. EPC contractor QA/QC team need a strong communication with SSS/JV team to avoid small issues.

28. During audits, SSS JV team recommends that EPC QA/QC team should call a monthly quality meeting

of all Sections, discuss on going issues, and share their findings with SSS JV.

29. For best communication EPC contractor needs English interpreters in different departments.

1.6.3 QA/QC Auditing by Employer Engineer

Following record shows general photographs from the Auditing done by the Employer Engineer’s QA/QC Team

on site, laboratories and batching plants for the current Reporting Period and indicates generally poor but

marginally acceptable practices / systems.


13

TGDC Laboratory: Audit of testing records

TGDC Laboratory: Audit of testing records


14

Section 2: Labeling of Records needs to be in English

Section 1: Material records need to be in proper filing system


15

Section 2: Checking of incoming material invoices

Section 1: Checking of Spillway RFIs record at office


16

Concrete Batching Plant: Checking of concrete documents

Concrete Batching Plant: Record of concrete dosage sheet is not in proper form


17

Concrete Batching Plant: Records not available in English version

Asphalt Laboratory: Checking documents record of Asphalt Concrete


18

Asphalt Laboratory: Checking testing records of Asphalt Concrete

Concrete Batching Plant: Checking of concert request slips record


19

Section 2: Records of training of QA/QC staff need to be in English version

TGDC Main office: Audit Completed with QA/QC team and SSSJV staff


20

APPENDICES (E&M ISSUES)


21

APPENDIX A: THE LIST OF RFI’S RAISED DURING LOCKDOWN PERIOD

No. Description of RFIs

1. Inspection of Installation of Brake Plates of Rotor # 1

2. Inspection of Installation of Lower Press Plates of Rotor # 1

3. Inspection of Elongation Value of Tightened Bolts between Rotor Hub and Generator Shaft # 1

4. Inspection of Assembly of Rotor before Shifting # 1

5. Inspection of Adjustment of Stator Installation # 1

6. Inspection of Installation of Stator Core Lamination # 1

7. Inspection of Rotor Supports Assembly and Installation # 1

8. Inspection of Assembly of Rotor Yoke # 1

9. Inspection of Assembly Rotor Pole # 1

10. Inspection of Rotor before Shifting # 1

11. Inspection of Rotor Heat Wedge Key # 1

12. Inspection of Installation of Brake Plates of Rotor # 2

13. Inspection of Adjustment of Stator Installation # 2

14. Inspection of Installation of Submerged Pump in Powerhouse


22

APPENDIX-B: THE LIST OF LOST RFI’S RELATED TO MECHANICAL WORKS

No Description of RFIs

1. Installation of Draft Tube Cone # 1




5. Welding Seam Defect repaired and painting on flowing surface of draft tube elbow # 1




9. Embedded Support of Stay Ring # 1




13. Installation of Stator Foundation Plates # 1




17. Installation of Foundation Plates of Upper Bracket # 1




21. Installation of Foundation Plates of Spiral Case # 1




25. Installation of Foundation Plates of Stator # 1




29. Installation of Drainage valve Ø500 of Spiral case # 2

30. Installation of Pit Liner # 1





23

APPENDIX-C: THE LIST OF LETTERS RELATED TO MECHANICAL WORKS

WHICH ARE NOT RESPONDED BY THE CONTRACTOR

No. Description Letter

No. Remarks

1. Cable Tray Sampling and Testing

7169 Contractor said they will submit the Sample along with Turbine and Generator Samples

2. Corrosion on Steel Components of Rotor (Lower Bracket Assembly – Braking System)

7262 Not Rectified and Responded yet.

3. O&M Requirement 7295

Contractor said there are a lot of documents and their preparation is in progress and will be submitted after the completion. It was suggested to the Contractor to submit the documents stage wise for the Approval from Employer’s Engineer.

4. Turbine Oil Purification System 7289 Will be responded in the coming week.

5. Drainage and Dewatering System

7298 Will be responded in the coming week.

6. Component and Hardware Material Finish Quality


7. HVAC Equipment Layout and Lighting Layout Drawings - Auxiliary Power House Building


8. Unacceptable Quality - Filtration Vessels

7351 Not Rectified and Responded yet.

9. Unit 1 - Oil Pipe Design Issue - Working Clearances


10. Material Inspection Report of Turbine and Generator

7410

Contractor said they have written the letter to the manufacturer for the samples as soon as the Contractor gets the dates from the manufacturer, he will respond to the letter with the dates of samples arrival.

11. Oil Pressure Testing - Unit 1 - Generator Braking System


12. Corroded Pipework and Fittings (Intake Tower)

7462 The Contractor said they already instructed their subcontractor to properly clean the pipework and its fittings before any inspection.

13. Water Supply Pipeline Layout of Switch Station and Fire Pump Room


14. Use of Asbestos Material 7491

The Contractor said they have not used the Asbestos material for insulation of Rotor # 2. They used Glass wool Insulation material in which cotton is insulated in Aluminum Silicate Needled Blanket.

The Contractor was asked to Submit the Test Reports and provide the Sample of above-mentioned Insulation Material for Employer’s Engineer record.


24

APPEDNIX-D: THE LIST OF SOME OTHER PENDING ISSUES

No. Description Remarks

1. Hydraulic Oil Samples Collected from Hoisting System at Intake Tower – Results are awaited

The Contractor said, results will be submitted in two Weeks

2.

Intake and Tailrace Gates have been installed during the Lockdown Period (Nov 2020 – Feb 2021) but no evidence of their inspection has been provided to Employer’s Engineer record.

The Contractor said that they just installed the Gates in that period but inspections will be offered to Employer’s Engineer after the completion (After Painting and after final in-house inspection of the Contractor)

3.

Submit the Method Statement of Installation of Gantry Crane at Shunt Reactor (Ref. Letter no. SSS-7517 dated July 07, 2021)

The Contractor said, they have prepared the Method Statement and will submit it in a couple of days.